Richard Irvine Best, Irish scholar, specifically a philologist and bibliographer, who specialises in Celtic Studies, is born at 3 Bishop Street in Derry, County Londonderry, on January 17, 1872. He is often known as R. I. Best, or simply Best to his close friends and family.

Best’s parents are Henry Best and Margaret Jane Best (née Irvine). His father is an excise officer working in Paisley, Renfrewshire, Scotland, at the time of his birth.

Best’s education takes place locally at Foyle College, a grammar school in County Londonderry which dates back to 1617, schooling children ages eleven to eighteen. Following his time at Foyle College, he does not attend university, however he is a member of the Irish Literary Society in London. Instead of attending university he works as a banking assistant for a time before an inheritance allows him to travel to Paris, France.

It is in Paris that Best meets, and becomes friends with, John Millington Synge, who recommends the lectures of Marie Henri d’Arbois de Jubainville at the Collège de France. He later goes on to translate and annotate Henri d’Arbois de Jubainville’s work, Le cycle mythologique irlandais et la mythologie celtique into The Irish Mythological Cycle and Celtic Mythology.

Upon returning to Dublin from Paris, Best becomes Honorary Secretary of the School of Irish Learning from its inception in 1903. It is incorporated into the Royal Irish Academy in 1926. He acts as joint editor of the school’s journal Ériu, and continues after the transfer of the journal to the Academy. In 1904, he joins the staff of the National Library of Ireland as an assistant director. He succeeds as Chief Librarian in 1924, and subsequently Library Director, a post he holds until 1940. Throughout his career, he becomes a prolific expert on Celtic studies, and is widely attributed to the survival and success of the subject as it is known today.

Best’s work earns him several accolades. He receives the Leibniz Medal of the Royal Prussian Academy in 1914, an honorary D.Litt. by the National University of Ireland in 1920, and an Honorary D.Litt. by Trinity College Dublin in 1923. In 1936, he is awarded the Medal of the Pontifical Academy of Sciences by Pope Pius XI for his facsimile edition of the Milan codex. He is elected as President of the Royal Irish Academy in 1942. His works, Bibliography of Irish Philology and of Irish Printed Literature (1913) and Bibliography of Irish Philology and Manuscript Literature, 1913-41 (1942), are considered to be some of his most important scholarly outputs.

Best is also known for his appearances in famous works of Irish literature. He appears in James Joyce‘s Ulysses. He is drawn by John Butler Yeats, father of William Butler Yeats, and his portrait now hangs in the National Gallery of Ireland.

Upon his retirement from the National Library, Best becomes a Senior Professor at the Dublin Institute for Advanced Studies (DIAS). He retires from the DIAS in 1947 at the age of seventy-five. From 1948 to 1956, he becomes chairman of the Irish Manuscripts Commission, a position previously held by Eoin MacNeill. While in this role, he supervises several facsimiles, including RIA MS 23 N 10, later renamed the Book of Ballycummin in 2019.

Following his retirement from the Irish Manuscripts Commission, Best spends much of the final three years of his life “sorting out his large correspondence,” much of which is currently held in the National Library. He also continues to publish new work throughout his later life. He works on a translation of the Book of Leinster alongside Osborn Bergin and Professor M. A. O’Brien, who takes over after Bergin’s death in 1950. The first fasciculus is published in 1954, the second in 1956 and the third in 1959. His work also appears in multiple academic journals, including Éiriu, and the Zeitschrift für celtische Philologie, Revue Celtique, Études Celtiques, Hermathena, The Dublin Magazine, and The Proceedings of the Royal Irish Academy. He also continues with his work in palaeography, including the last paper he completes on the Book of Armagh in 1958, which appeared in Éiriu vol. xviii. His aid in the writing of others is particularly visible in his surviving correspondence with George Moore.

Best marries his wife, Edith Best (née Oldham), in 1906, he being seven years her junior. She is the older sister of Charles Hubert Oldham, who goes on to become Professor of Economics at University College Dublin. She herself is a musician, a pianist, who had studied at the Royal College of Music in London. The couple has no children, and also claims to have no affiliation with any religion. Edith passes away at their home on March 9, 1950.

Best dies on September 25, 1959, at his home on 57 Upper Leeson Street in Dublin. The Richard I. Best Papers are currently held at the National Archives of Ireland and have been instrumental in the foundation of The Richard Irvine Best Memorial lecture. This discussion and celebration of Best’s work, organised by Richard Irvine Best Memorial Lecture Trust, has taken place since 1969.